Nassau's caves were created by the sea, millions of years ago. The area that is now the caves was originally at sea level, and ocean waves gradually wore away the softer parts of the sedimentary rock, leaving what are now large hollows. The Lucayans, the original inhabitants of The Bahamas, used the caves for various purposes, including food storage and to protect themselves during hurricanes. These caves are now home to fruit bats. If you are lucky, you may even get to see one!